[Haskell-beginners] Is there any pydoc or perldoc like for Haskell?

[Carlos J. G. Duarte]

Python has the pydoc command to get help for builtins and modules, eg. 
"pydoc def" or "pydoc itertools"
Perl has a similar facility with the perldoc, eg. "perldoc -tf substr"

Is there such a thing available for Haskell?
I have been consulting http://www.haskell.org/hoogle/ but it isn't as 
practical as having help available at the prompt (although very useful, 
though).

thanks in advance.